qt designer tutorial

Pyuic.py-o test.py Test.ui, double-click to run this file to generate test.py2. Open test.py Modify the inside class parameter to Qtgui.qmainwindow, and define the constructor:def __init__ (self):Self.super (ui_mainwindow,self). __init__ ()Self.setupui (self)Self.retranslateui (self)3. Create the package flag file in src __init__.py, open it on the inside to write:From PYQT4 import Qtcore, QtguiImport SysImport TestApp = Qtcore.qapplication (SYS,ARGV)Win = test. Ui_mainwindow ()Win = Show ()Sys

The pre-trend diagram is the topology diagram mentioned in the data structure. Nodes have a succession relationship, and nodes of the same level can run concurrently. P1 is the start node, and P9 is the end node.P1->P4, only when the P1 run is complete P4 can start execution. There is this pre-relationship between them. After P2 and P3 run, P5 can run.First calculate multiplication after calculate plus minus, so first calculate b*3 and x*9.b*3 result then divide x. We can use some signals to exp

at the time of the connection, it's simple to do, just add the library to the. Pro file, as shown in:And then compile again, under normal circumstances will be compiled successfully, into the project directory, we will find a very long name of the folder, which is the QT in the compilation of the time produced by some intermediate files, of course, we compile the generated executable is also in the inside, the name and work name, open the console, En

QT is similar to MFC, also an SDK development package, his advantage is cross-platform. QT is very close to the original ecological C + +, the syntax is simple and clear. In the embedded development or comparative advantage. It gives application developers the functionality they need to build an art-level graphical user interface. QT is completely object-oriented

1. OverviewQcustomplot is a super ultra-compact Qt drawing class, very beautiful, very easy to use, Only need to add a qcustomplot.h and qcustomplot.cpp files can be used, far more convenient and beautiful than QWT, you can use the two source files themselves can also be compiled into library files, very convenient.Official website: http://www.qcustomplot.com/1.0:http://download.csdn.net/detail/czyt1988/5986701Here's a look at its super-powerful featu

detailed configuration information. 3. View running results View the running result. If the above steps are successfully compiled, you can view the running result by running the demo that comes with Qt/Embedded. Run on the framebuffer of the host machine: cd$QTEDIR/examples/launcher ./launcher-qws Run on Virtualframebuffer: exportQTDIR=$QTEDIR exportPATH=$QTEDIR/bin:$PATH exportLD_LIBRARY_PATH=$QTEDIR/lib:$QT2DIR/lib:$LD_LIBRARY_

[QT Tutorial] 30th XML (iv) using stream to read and write XMLLandlord posted on 2013-5-22 13:03:33 |Views: 611 | Replies: 0 Using streams to read and write XMLCopyright notice this article original in the author Yafeilinux, reproduced please indicate the source.Introductory lead introduced two new classes from QT 4.3 to read and write XML documents: Q

The code is not analyzed here because it is enough in the tutorial. If you are interested, you can check the code yourself. This tutorial comes from the original neheopengl Chinese tutorial (http://www.yakergong.net/nehe/), but it has a bad place, that is, when I go to see, it can not download the code ~~~~ Maybe my character is poor. It can be used as a referenc

corresponding type through the conversion function, as shown in figure QDomElemente=n.toElement(); If you only want to read and display the entire XML file, it is a good choice, because it provides a simpler interface than DOM, and it does not need to read the entire XML file into the memory at a time, this can be used to read large files. The QtXml module of Qt provides a QXmlSimpleReader class, which is a SAX-based XML parser. This parser is

Qt tutorial 1-14 steps in total This tutorial describes how to use the QT toolkit for graphic user interface programming. It does not cover everything: It emphasizes teaching a programming idea of graphical user interface programming, and introducing QT features is also nec

Qt for Android development example tutorial This article describes how to use Qt5.3.0 to develop Android applications. Due to a small amount of official information, we will record the problems encountered during the development process and solutions. The procedure is as follows: 1. Only qml MediaPlayer can be used for video playback on the Android platform. 2. file: // For example: Image{ source:"